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Finding the Fourth Proportional to 70,709.00, 97,580.03 and 38,879.64

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Solution

The fourth proportional to 70,709.00, 97,580.03 and 38,879.64 is: 53,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,709.00 : 97,580.03 = 38,879.64 : x
  2. Step 2: Convert to fraction form
    70,709.00/97,580.03 = 38,879.64/x
  3. Step 3: Cross multiply
    70,709.00x = 97,580.03 × 38,879.64
  4. Step 4: Simplify right side
    70,709.00x = 3,793,876,243.19
  5. Step 5: Solve for x
    x = 3,793,876,243.19/70,709.00
  6. Step 6: Final answer
    x = 53,654.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.